19980459838

素因数分解:

$2^1\times {\mathrm{197}}^1\times {\mathrm{3209}}^1\times {\mathrm{15803}}^1$

素因数の和:19211

約数の個数: 16

約数和(自身を含む): 30134118960

約数和(自身を除く): 10153659122

約数列:

[1, 2, 197, 394, 3209, 6418, 15803, 31606, 632173, 1264346, 3113191, 6226382, 50711827, 101423654, 9990229919, 19980459838]

約数ペア:

[(1, 19980459838), (2, 9990229919), (197, 101423654), (394, 50711827), (3209, 6226382), (6418, 3113191), (15803, 1264346), (31606, 632173)]